Question

On your drive home from school, you travel 1200 m in 80 s, then 400 min 20 s.
What is your average speed in m/s?

Answer 1

Average speed = Total distance/total time taken

$= \frac{1200 + 400}{80 + 20}$

$= \frac{1600}{100}$

$= \frac{16}{1}$

$= 16 \: ms {}^{ - 1}$